Pressure-induced insulator–metal transition in EuMnO3

[en] We study the influence of external pressure on the electronic and magnetic structure of EuMnO3 from first-principles calculations. We find a pressure-induced insulator– metal transition at which the magnetic order changes from A-type antiferromagnetic to ferromagnetic with a strong interplay with Jahn–Teller distortions. In addition, we find that the non-centrosymmetric E*-type antiferromagnetic order can become nearly degenerate with the ferromagnetic ground state in the high-pressure metallic state. This situation can be exploited to promote a magnetically-driven realization of a non-centrosymmetric (ferroelectric-like) metal.

Disciplines :

Physics

Author, co-author :

Qiu, Ruihao ; Université de Liège - ULiège > Form. doct. sc. (phys. - Paysage)

Bousquet, Eric ; Université de Liège > Département de physique > Physique théorique des matériaux

Cano, Andres

Language :

English

Title :

Pressure-induced insulator–metal transition in EuMnO3

Publication date :

June 2017

Journal title :

Journal of Physics: Condensed Matter

ISSN :

0953-8984

eISSN :

1361-648X

Publisher :

Institute of Physics, Bristol, United Kingdom

Volume :

Pages :

305801

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://iopscience.iop.org/article/10.1088/1361-648X/aa75be

Name of the research project :

CECI Grant No. 2.5020.1; Tier-1 supercomputer Grant No. 1117545

Available on ORBi :

since 30 June 2017

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Bibliography

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